Counters. Lucario and other vacuum wave user can try a ohko with vacuum wave. Gliscor and golurk have strong def stats, and can survive physical hits, though special sets are a problem. Garchomp resists volt switch and only has 1x weaknesses to its moves, except hp ice, and ko with earth power or possibly a boosted earthquake. Terrakion can decimate it with close combat or sacred sword.
Next week prediction: terrakion